universe & solar system section 1 MCQ Questions & Answers Detailed Explanation

Question : 1

According to the Geo-scientists, the shape of the earth is:

1. round
2. spherical
3. close to that of a sphere
4. an oblate ellipsoid

a) 1 and 2 only

b) 3 and 4 only

c) 1, 2 and 3

d) 2, 3 and 4

Question : 2

The number of staellites of the planet is Mercury is

a) 2

b) 16

c) 1

d) 0

Question : 3

Which one of the following conditions is most relevant for the presence of life on mars?

a) Occurrence of ice cap and frozen water

b) Occurrence of ozone

c) Thermal conditions

d) Atmospheric composition

Question : 4

Which of the following pairs of planets is without satellites?

a) Earth and Jupiter

b) Mercury and Venus

c) Mercury and Mars

d) Venus and Mars

Question : 5

The chronometer is used for

a) Keeping correct time

b) Measuring earthquakes

c) Measuring rock-density

d) Measuring distance

Question : 6

Consider the following statements.

1. The axis of the Earth’s magnetic field is inclined at 23 and half degree to the geographic axis of the Earth.
2. The Earth’s magnetic pole in the Northern hemisphere is located on a peninsular in Northern Canada.
3. Earth’s magnetic equator passes through Thumba in South India.

a) Only 2

b) Only 3

c) 2 and 3

d) 1, 2 and 3